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alexgriva [62]
3 years ago
5

Solve the following inequalities (picture attached)

Mathematics
1 answer:
11Alexandr11 [23.1K]3 years ago
6 0
34.
(a) A. x < 4
(b) p > 1
(c) y <span>≤ 2.8

I love solving inequalities. I hope you find this answer the most helpful! :)</span>
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Reduce to simplest form.
BigorU [14]
Convert 3 6/2 to an improper fraction so: 12/2
convert 2 4/5 to 14/5 
multiply the numerators of the improper fractions so 12*14, which is 168.
multiple the denominators so 2*5, which is 10.
the new fraction is 168/10, so you divide 168 divided by 10, which is 16.8, or 16 4/5.
8 0
3 years ago
If you flip a coin 24 times, how many times would you predict that the coin lands on tails?
olya-2409 [2.1K]

Answer:

I predict 12 times

I hope this helped;;

5 0
2 years ago
Test the claim that the proportion of people who own cats is significantly different than 80% at the 0.2 significance level. The
sattari [20]

Answer:

C. H0 : p = 0.8 H 1 : p ≠ 0.8

The test is:_____.

c. two-tailed

The test statistic is:______p ± z (base alpha by 2) \sqrt{\frac{pq}{n} }

The p-value is:_____. 0.09887

Based on this we:_____.

B. Reject the null hypothesis.

Step-by-step explanation:

We formulate null and alternative hypotheses as  proportion of people who own cats is significantly different than 80%.

H0 : p = 0.8 H 1 : p ≠ 0.8

The alternative hypothesis H1 is that the 80% of the  proportion is different and null hypothesis is , it is same.

For a two tailed test for significance level = 0.2 we have critical value  ± 1.28.

We have alpha equal to 0.2  for a two tailed test . We divided alpha with 2 to get the answer for a two tailed test. When divided by two it gives 0.1 and the corresponding value is ± 1.28

The test statistic is

p ± z (base alpha by 2) \sqrt{\frac{pq}{n} }

Where p = 0.8 , q = 1-p= 1-0.8= 0.2

n= 200

Putting the values

0.8 ± 1.28 \sqrt{\frac{0.8*0.2}{200} }

0.8 ± 0.03620

0.8362, 0.7638

As the calculated value of z lies within the critical region  we reject the null hypothesis.

8 0
3 years ago
Describe when to use a series and when to use an equation.
anyanavicka [17]

Answer:

An equation is used when we have paired sets of data to describe how the values in one pair change when we alter the values in the other set.

On the other hand, a series gives a general formula of determining the value of the nth observation when the values have been arranged in increasing order

Step-by-step explanation:

An equation such as; y = 3x+5 models the relation between the response variable y and the predictor variable x. It tells us how y changes when x is altered by a certain magnitude. The value 3 is described as the slope while 5 is the y-intercept.

On the other hand, a series such as;  score = 2 + 3n provides a general formula that can be used to determine the score of the nth individual in a sample or population.

5 0
3 years ago
Which equation could represent the graph shown below?
almond37 [142]

Answer:

y=-\sqrt{x-2}

Step-by-step explanation:

I used an online graphing calculator and process of elimination...

3 0
3 years ago
Read 2 more answers
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